Siemens SINAMICS S Series - F32112 (N, A) Encoder 2: The error bit is set in the serial protocol; F32115 (N, A) Encoder 2: Amplitude error track A or B (A^2 + B^2)

Faults and Alarms
List of faults and alarms
3-1666
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
Re fault value, bit 6 = 1:
The battery must be changed (only for encoders with battery back-up).
Reaction upon N: NONE
Acknowl. upon N: NONE
Reaction upon A: NONE
Acknowl. upon A: NONE
F32112 (N, A) Encoder 2: The error bit is set in the serial protocol
Drive object: All objects
Reaction: A_INFEED: NONE
SERVO: OFF1 (IASC / DCBRAKE, NONE, OFF2, OFF3)
VECTOR: OFF1 (IASC / DCBRAKE, NONE, OFF2, OFF3)
Acknowledge: PULSE INHIBIT
Cause: Serial communication protocol transfer error between the encoder and evaluation module SMCxx.
Fault value (r0949, interpret decimal):
Remedy: Re fault value:
Reaction upon N: NONE
Acknowl. upon N: NONE
Reaction upon A: NONE
Acknowl. upon A: NONE
F32115 (N, A) Encoder 2: Amplitude error track A or B (A^2 + B^2)
Drive object: All objects
Reaction: A_INFEED: NONE
SERVO: OFF1 (IASC / DCBRAKE, NONE, OFF2, OFF3)
VECTOR: OFF1 (IASC / DCBRAKE, NONE, OFF2, OFF3)
Acknowledge: PULSE INHIBIT
Cause: The amplitude (A^2 + B^2) does not lie within the tolerance bandwidth (software monitoring function).
SMC20:
The nominal signal level of the encoder must lie in the range 375 mV to 600 mV (500 mV -25 % / +20 %).
On the other hand, the response threshold is < 230 mV (frequency characteristic).
SMC10:
The nominal signal level is at 2900 mV (2.0 Vrms). The response threshold is < 1070 mV.
Fault value (r0949, interpret decimal):
Low word:
Signal level, track A (16 bits with sign).
High word:
Signal level, track B (16 bits with sign).
SMC20:
A signal level of 500 mV peak value corresponds to the numerical value 5333 hex = 21299 dec.
SMC10:
A signal level of 2900 mV peak value corresponds to the numerical value 6666 hex = 26214 dec.
Remedy: - check that the encoder cables are routed in compliance with EMC.
- check the plug connections.
- replace the encoder or encoder cable.
- check the Sensor Module (e.g. contacts).
- with measuring systems without their own bearing system: Adjust the scanning head and check the bearing system
of the measuring wheel.
- for measuring systems with their own bearing system: Ensure that the encoder housing is not subject to any axial
force.
Reaction upon N: NONE
Acknowl. upon N: NONE
Reaction upon A: NONE
Acknowl. upon A: NONE